Patch "perf bench: Fix two memory leaks detected with ASan" has been added to the 5.4-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    perf bench: Fix two memory leaks detected with ASan

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-bench-fix-two-memory-leaks-detected-with-asan.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 95b40d75fc9d87bb9719208e6a6c87ff59c9afd9
Author: Sohaib Mohamed <sohaib.amhmd@xxxxxxxxx>
Date:   Wed Nov 10 04:20:11 2021 +0200

    perf bench: Fix two memory leaks detected with ASan
    
    [ Upstream commit 92723ea0f11d92496687db8c9725248e9d1e5e1d ]
    
    ASan reports memory leaks while running:
    
      $ perf bench sched all
    
    Fixes: e27454cc6352c422 ("perf bench: Add sched-messaging.c: Benchmark for scheduler and IPC mechanisms based on hackbench")
    Signed-off-by: Sohaib Mohamed <sohaib.amhmd@xxxxxxxxx>
    Acked-by: Ian Rogers <irogers@xxxxxxxxxx>
    Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
    Cc: Hitoshi Mitake <h.mitake@xxxxxxxxx>
    Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
    Cc: Mark Rutland <mark.rutland@xxxxxxx>
    Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
    Cc: Paul Russel <rusty@xxxxxxxxxxxxxxx>
    Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    Cc: Pierre Gondois <pierre.gondois@xxxxxxx>
    Link: http://lore.kernel.org/lkml/20211110022012.16620-1-sohaib.amhmd@xxxxxxxxx
    Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index b142d87337be8..9e6e0ca6a2002 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -223,6 +223,8 @@ static unsigned int group(pthread_t *pth,
 		snd_ctx->out_fds[i] = fds[1];
 		if (!thread_mode)
 			close(fds[0]);
+
+		free(ctx);
 	}
 
 	/* Now we have all the fds, fork the senders */
@@ -239,6 +241,8 @@ static unsigned int group(pthread_t *pth,
 		for (i = 0; i < num_fds; i++)
 			close(snd_ctx->out_fds[i]);
 
+	free(snd_ctx);
+
 	/* Return number of children to reap */
 	return num_fds * 2;
 }